/* utils/ashmem.h
 **
 ** Copyright 2008 The Android Open Source Project
 **
 ** This file is dual licensed.  It may be redistributed and/or modified
 ** under the terms of the Apache 2.0 License OR version 2 of the GNU
 ** General Public License.
 */

#ifndef _UTILS_ASHMEM_H
#define _UTILS_ASHMEM_H

#include <linux/limits.h>
#include <linux/ioctl.h>

#define ASHMEM_NAME_LEN        256

#define ASHMEM_NAME_DEF        "dev/ashmem"

/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
#define ASHMEM_NOT_REAPED    0
#define ASHMEM_WAS_REAPED    1

/* Return values from ASHMEM_UNPIN: Is the mapping now pinned or unpinned? */
#define ASHMEM_NOW_UNPINNED    0
#define ASHMEM_NOW_PINNED    1

#define __ASHMEMIOC        0x77

#define ASHMEM_SET_NAME        _IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])
#define ASHMEM_GET_NAME        _IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])
#define ASHMEM_SET_SIZE        _IOW(__ASHMEMIOC, 3, size_t)
#define ASHMEM_GET_SIZE        _IO(__ASHMEMIOC, 4)
#define ASHMEM_SET_PROT_MASK    _IOW(__ASHMEMIOC, 5, unsigned long)
#define ASHMEM_GET_PROT_MASK    _IO(__ASHMEMIOC, 6)
#define ASHMEM_PIN        _IO(__ASHMEMIOC, 7)
#define ASHMEM_UNPIN        _IO(__ASHMEMIOC, 8)
#define ASHMEM_ISPINNED        _IO(__ASHMEMIOC, 9)
#define ASHMEM_PURGE_ALL_CACHES    _IO(__ASHMEMIOC, 10)

#endif    /* _UTILS_ASHMEM_H */
